What is the minimum pressure test that a forced sewer must be subjected to?

The minimum pressure test requirement for a forced sewer is typically set to ensure that the system can withstand the operating pressures without leaking. When a forced sewer is tested, it is crucial to apply a pressure that exceeds what the system will normally encounter. The correct choice specifies that the pressure should be 5 PSI greater than the pump rating for a duration of 15 minutes. This ensures not only that the system can handle brief spikes in pressure during operational scenarios, but also provides sufficient time to observe for any potential leaks or weaknesses in the system.

This 15-minute duration is essential as it allows enough time for any minor leaks to manifest, ensuring that the system is tested thoroughly. Meeting this standard improves confidence in the integrity and reliability of the sewer system once it is in service.